Together with our supplier Vortex we provide broadband and V-style anti-reflection (AR) coating from 300 nm to 6000 nm. We offer AR coatings service on your optics with an unrivalled rapid turnaround or can also supply “make complete” AR-coated optics with substrates sourced through one of our trusted suppliers. Our AR coatings can be customized to your application’s requirements – contact the AMS Technologies experts today to discuss your customized anti-reflection coating solution! Broadband AR CoatingA number of standard broadband processes covering many spectral regions is available that can also be adjusted for your specific requirements, e.g. the coating’s properties can be moved to a number of different bands if required. Some examples of broadband AR coatings: Broadband AR Coatings    Optimized Wavelength Substrate Average Reflection Within Wavelength Band AR 400-700 nm Glass <0.5% AR 400-900 nm Glass <1.0% AR 400-1100 nm Fused Silica <1.0% AR 400-1700 nm Sapphire <3.5% AR 400-2500 nm Sapphire <8.0%   V-CoatingAs a special type of anti-reflective coating, V-coatings improve transmission in a very narrow wavelength range around the design wavelength. This type of coating is called a "V-coating" because the curve of the reflection over the wavelength resembles the letter "V", with a minimum at the design wavelength. Both single- and multiple-wavelength V-coat processes are available for laser and LED applications covering a range from 300 nm to 6000 nm, with maximum reflection of <0.25% per surface at the designated wavelength. Some examples of V-coatings: V-Coatings     Optimized Wavelength Substrate Reflection V-Coat 633 nm BK7 <0.25% V-Coat 1064 nm BK7 <0.25% V-Coat 1550 nm Sapphire <0.25% V-Coat 3300 nm CaF2 <0.25% V-Coat 532_1064 nm BK7 <0.25% V-Coat 532_1064_1550 nm BK7 <0.25% V-Coat 532_633_780_1064_1550 nm BK7 <0.25%   Infrared AR CoatingInfrared anti-reflection coating can be provided anywhere between 0.7 µm and 6 µm on Glass, Silicon, Germanium, Sapphire, Barium Fluoride, Calcium Fluoride, Gallium Arsenide etc. to suit your specification. Some examples of infrared AR coatings: Infrared AR Coatings     Optimized Wavelength Substrate Average Reflection Within Wavelength Band AR 400-1700 nm Sapphire <2% AR 400-2500 nm Sapphire <3% AR 1200-2500 nm Silicon <3% AR 1500-5000 nm Silicon <3% V-Coat 1550 nm Sapphire <0.25% @1550 nm per Surface AR 2000-5000 nm Germanium <3% AR 3000-5000 nm Silicon <3% AR 3000-5000 nm Germanium <3% V-Coat 3300 nm Silicon <0.25% @3300 nm per Surface

Together with our supplier Vortex, we are able to provide optical beamsplitters and dichroic filters that are placed in optical systems usually at 45° to separate (or combine) different wavebands or wavelengths. One band is reflected from the front surface, while the 2nd band is transmitted through. Vortex’s beamsplitters and dichroic filters can be used to separate different planes of polarization. Some examples of Vortex’s previous work: Beamsplitter for Visible Region to Split/Combine Two Wavelength Bands, 45° Beamsplitter to Separate Two Wavelength Bands in the Mid IR Region at 45° Mid IR Filter Used for Separating S and P Polarization Bands at 45° Polarizing Beam-Splitter for S and P Polarization for 1550 nm Laser at 45° Filter for Separation of Visible and Far Infrared at 45° We are happy to provide a unique beamsplitter or dichroic filter – designed, specified and manufactured to your application’s requirements. Contact the AMS Technologies experts today to discuss your customized beamsplitter or dichroic filter solution!

 0.7-6.0 µm; Transmittance >65%->85%; FWHM 42-190 nm; Diameter 25 mm; Thickness 0.5 mm; Surface Quality <60-40 Scratch-Dig  Vortex designs and makes a wide range of IR filters with center wavelengths from 0.7 µm to 6.0 µm. While traditionally thermal evaporation has been used for IR filters, Vortex IR filters are deposited by sputtering using the supplier’s “Rockard”© technology.  Sputter deposition has a process energy approximately three times that of thermal evaporation, leading to the filters’ densely packed structure. This technology ensures the following superior environmental and optical properties: Highly durable coatings suitable for the toughest environments Extremely low temperature shift Reduced passband ripple for even response High blocking efficiency to increase signal to noise ratio All IR filters are sold as 25mm diameter, 0.5mm thick and exhibit high angular tolerance, extremely low change with temperature and very high resistance to thermal shock.  AMS offers Vortex’s wide range of ‘standard’ narrow band IR filters for detection of common gases, chemicals and materials. For details and specifications see below: Standard Narrow Band Filters       Part Number CWL (nm) Transmittance FWHM (nm) Suggested Use NBP-1940-42-25 1940 nm (±8 nm) >85% 42 nm (±5 nm) H2O (Water) NBP-3055-145-25 3055 nm (±16 nm) >75% 145 nm (±17 nm) C2H2 (Acetylene) NBP-3260-150-25 3260 nm (±16 nm) >75% 150 nm (±17 nm) C2H4 (Ethylene) NBP-3330-150-25 3330 nm (±15 nm) >75% 150 nm (±15 nm) CH4 (Methane) NBP-3349-70-25 3349 nm (±15 nm) >75% 70 nm (±15 nm) C2H6 (Ethane) NBP-3400-155-25 3400 nm (±15 nm) >75% 155 nm (±15 nm) (HC) General Hydrocarbon NBP-3900-180-25 3900 nm (±18 nm) >75% 180 nm (±20 nm) (Reference) NBP-4000-180-25 4000 nm (±18 nm) >75% 180 nm (±15 nm) (Reference) NBP-4260-160-25 4260 nm (±20 nm) >70% 160 nm (±21 nm) CO2 (Carbon Dioxide) NBP-4530-85-25 4530 nm (±20 nm) >75% 85 nm (±10 nm) N2O (Nitrous Oxide) NBP-4660-165-25 4660 nm (±15 nm) >75% 165 nm (±15 nm) CO (Carbon Monoxide) NBP-5330-190-25 5330 nm (±25 nm) >65% 190 nm (±25 nm) NO (Nitrogen Monoxide)   General IR filters and coatings are available for applications such as non-contact temperature measurement, filter wheels and machine vision. For details and specifications see below: General IR Filters and Coatings       Part Number Transmission Peak Blocking Range Suitable Detectors Description BPF-VIST-IRBL-25 70% Ave. for 400-600 nm 0.65-5 µm+  Si Photodiode Type Visible Transmission from 400 nm to 600 nm and Blocking for Near-IR and Mid-IR BPF-1.3-2.5-25 90% Ave. for 1.3-2.5 µm UV and Visible to 1.2 µm, 2.6-3.8 µm PbS, MCT and Boltometer Type Transmits from 1.3 µm to 2.5 µm and Blocks Outside this Range SWP-1.4-2.6-25 90% Ave. for 1.4-2.6 µm 2.75-20 µm PbSe, MCT and Boltometer Type 90% Average Transmission for 1.4 µm to 2.6 µm, Blocks from 2.7 µm to 20 µm LWP-1.65-25 90% Ave. in Pass Band UV, Visible + Desired Part of IR PbS, MCT and Boltometer Type Long Wave Pass Filter, Transmits Above 1.65 µm and Blocks Below Back to UV BPF-2070-2510-25 90% Ave. For 1070-2510 nm, 60% @2050 nm and 2550 nm ±1% UV and Visible to 2.0 µm and 2.7-20 µm+ PbS, InGaAs and Boltometer Type Mid IR Wide Band Pass Filter for 2070 nm to 2500 nm, Used for Non-contact Temperature Measurement BPF-3.0-5.0-25-Si >90% Ave. 3-5 µm Band UV and Visible to 2.8 µm and 5.3-7.5 µm PbSe, MCT and Boltometer Type 90% Average Transmission from 3 µm to 5 µm, Blocks Outside this Range to 7.5 µm on Silicon BPF-3.0-5.0-25-SAP >90% Ave. 3-5 µm Band UV and Visible to 2.8 µm and 5.3-7.5 µm PbSe, MCT and Boltometer Type 90% Average Transmission from 3 µm to 5 µm, Blocks Outside this Range to 20 µm on Sapphire   Custom filters can be manufactured with short lead-times, contact the AMS Technologies filter experts today to discuss a customized filter solution tailored to your application’s requirements. Key Features: Center Wavelength Range: 0.7 µm to 6.0 µm Typical Bandwidth (FWHM): 42 nm to 190 nm Transmittance: >65% to >85% Diameter: 25 mm Thickness: 5 mm Surface Quality: <60-40 Scratch-Dig Highly Durable and Suitable for the Toughest Environments (RockArd© Deposition Technology) High Angular Tolerance Extremely Low Change With Temperature Very High Resistance to Thermal Shock Applications: Detection of Common Gases and Materials Like H2O, C2H2, C2H4, C2H6, HC, CO2, N2O, CO, NO; Non-contact Temperature Measurement; Filter Wheels, Machine Vision

0.9-5.0 µm; Transmission 50%-75%; FWHM 1%, 2% * Center λ; Dimensions 15x3.5 mm; Thickness 0.5 mm; Surface Quality <60-40 Scratch-Dig Infrared linear variable filters (LVF) are narrow band filters where the center or peak wavelength changes continuously along its length from one side to the other – and across the device’s full wavelength range. Vortex’s linear variable filters feature a narrow band profile with a “full width half maximum” (FWHM) bandwidth of 1% or 2% of peak wavelength. All of the Vortex infrared linear filters exhibit high angular tolerance, extremely low change with temperature and very high resistance to thermal shock. Our range of standard infrared linear variable filters allows customers to explore the technology but at a relatively low cost:  Standard Infrared Linear Variable Filters (LVF)       Part Number Wavelength Range Bandwidth (as a % of Center Wavelength) Basic Blocking Range Gradient of Change Dimensions (L x W x T) LVF 0.9-1.7-3.5-15-0.5-2% 0.9-1.7 µm 2% (Generation 1) UV-1.8 µm, OD>2.5 Ave. Outside the Transmission Band 60 nm/mm 15 x 3.5 x 0.5 mm LVF 1.3-2.6-3.5-15-0.5-2% 1.3-2.6 µm 2% (Generation 1) 1.2-2.6 µm, OD>2.5 Ave. Outside the Transmission Band 85 nm/mm 15 x 3.5 x 0.5 mm LVF 2.5-5.0-3.5-15-0.5-2% 2.5-5.0 µm 2% (Generation 1) 1.8-5.5 µm, OD>2.5 Ave. Outside the Transmission Band 165 nm/mm 15 x 3.5 x 0.5 mm LVF 0.9-1.7-3.5-15-0.5-1% 0.9-1.7 µm 1% (Generation 2) UV-1.8 µm, OD>3.5 Ave. Outside the Transmission Band 60 nm/mm 15 x 3.5 x 0.5 mm LVF 1.3-2.6-3.5-15-0.5-1% 1.3-2.6 µm 1% (Generation 2) 1.2-2.6 µm, OD>3.5 Ave. Outside the Transmission Band 85 nm/mm 15 x 3.5 x 0.5 mm  Vortex also designs and manufactures custom infrared LVFs, featuring different bandwidths, sizes (e.g. to suit the user’s detector window dimensions), etc. to meet your needs. Contact the AMS Technologies filter experts today to discuss a unique customized linear variable filter, designed, specified and manufactured to your application’s requirements. Key Features: Peak Wavelength Changes Continuously With Distance Across the LVF’s Length Transmission: 50% to 75% Across the Band To Extend the LVF’s Blocking Range, a Suitable Bandpass Filter Can Be Added Substrate Dimensions (LxW): 15 mmx 3.5 mm Substrate Thickness: 0.5 mm Surface Quality: <60-40 Scratch-Dig Key Features of Generation 2 Infrared Linear Variable Filters: 2 Ranges Covered, 0.9-1.7 µm and 1.3-2.5 µm Bandwidth (FWHM): 1% x Center Wavelength Blocking Greater Than OD 3.5 Average Outside Passband Specifically for Systems Where Higher Signal-to-noise Ratio is Critical Key Features of Generation 1 Infrared Linear Variable Filters: 3 Ranges Covered, 0.9-1.7 µm, 1.3-2.5 µm and 2.5-5.0 µm Bandwidth (FWHM): 2% x Center Wavelength Blocking Greater Than OD 2.5 Average Outside Passband Applications: Mini-spectrometers; Multi-gas Analysis; Industrial Process Monitoring; Other

Together with our supplier Vortex, we are able to design and manufacture custom visible filters with short lead-times for many applications. All Vortex filters are sputtered, meaning they are highly durable. We can provide all common types of filter, like Long Wave Pass (LWP), Short Wave Pass (SWP), Wide Band Pass (WBP) and Narrow Band Pass (NBP). Some Examples: Visible Long Wave Pass Filter for blocking lower visible wavelengths (e.g. below 530 nm). Applications include fluorescence, medical systems, order sorting in spectrometers and scientific instruments. Visible Short Wave Pass Filter for blocking longer wavelengths (e.g. above 730 nm) and transmitting short wavebands. Applications include thermal management (Hot Mirrors) in systems and shortening the ranges of sensitivity of detectors. Visible Wide Band Pass Filter used to block a higher and lower wave band and allow a band (e.g. 550 nm to 600 nm) to transmit. A typical application is to isolate a working band in visible systems using Silicon photodiode detectors or visible cameras. Visible Narrow Band Pass Filter typically used to isolate a narrow wavelength range (e.g. around 530 nm) for use in scientific analysis or LED tidying. Steep Edge 45 Deg LWP Filter for separation of colors at 45° angle of incidence – for example blue reflected, orange/red transmitted. Extended Hot Mirror for 45 Deg Angle of Incidence – a type of SWP filter can be used for an application, where the requirement is to reflect the heat of the near infra-red and allow some visible transmission. We are happy to provide a unique visible filter – designed, specified and manufactured to your application’s requirements. Contact the AMS Technologies filter experts today to discuss your customized visible filter solution!